Developer Utilities

Base64 Encoder & Decoder

Encode and decode text strings and binary data into Base64 format securely without server uploads.

100% Client-Side Base64 Transformer

Mode:

Plain Text Input

Base64 Encoded Output

SGVsbG8gV29ybGQhIFdlbGNvbWUgdG8gU2VhcmNoemVlIDEwMCUgY2xpZW50LXNpZGUgQmFzZTY0IGNvbnZlcnRlci4=

What is Base64 Encoding & Decoding?

Property	Specification
Character Set	64 printable ASCII characters + `=` padding.
Data Overhead	Increases binary size by approximately 33% (4 output chars for every 3 input bytes).
Privacy Standard	100% client-side memory processing. Zero network requests.

What is Base64 encoding?

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format using 64 printable characters (RFC 4648).

Is Base64 encoding secure encryption?

No. Base64 is an encoding format for data transport and representation, not encryption. Anyone can decode a Base64 string without a password.